St. Petersburg areaKey additions: IF Akinori Iwamura, 1B Hee-Seop Choi, 1B Carlos Pena, C Raul Casanova.Key losses: Travis Harper, OF Damon Hollins, RHP Brian Meadows, IF Tomas Perez, RHP Tyler Walker.Spring questions: How will that season-ticket base look after slicing payroll from $35 million to $24 million, lower even than the Marlins? ... When does Maddon's impressive supply of optimism start to run out? ... Can Iwamura play every day or will he struggle to make the adjustment, a la former Dodgers 3B Nori Nakamura?Phenom watch: RHP Jeff Niemann, the former first-rounder from Rice, has overcome shoulder woes and could push for a spot in a mediocre rotation.